METHOD AND COMPUTER PROGRAMME PRODUCT FOR GENERATION OF A USER-SPECIFIC TRANSMISSION EXCLUSION LIST AND METHOD FOR FORWARDING MESSAGES IN A DECENTRALISED COMMUNICATION SYSTEM

摘要

At least one transmitter for exclusion is described by giving at least one piece of address information about the transmitter in order to generate a user-specific transmitter exclusion list (L). For each given piece of address information, an irreversible unambiguous representation is generated, deposited in a first list (L1), stored in the decentralised communication system as a user-specific transmitter exclusion list (L). In order to forward messages, a message (5) from a transmitter (1) with provided address information (AS) for forwarding to an addressee (2) is received. The transmitter exclusion list specific to the addressee (2) is read from the decentralised communication system. An irreversible unambiguous representation of the address information of the transmitter is generated and compared with the entries in the user-specific transmitter exclusion list that has been read. Should the irreversible unambiguous representation of the address information of the transmitter not correspond with any of the entries in the user-specific exclusion list, the message is forwarded to the addressee.